Home / 20,754,429.30-31,047,663.15-18,235,005.30

Finding the Fourth Proportional to 20,754,429.30, 31,047,663.15 and 18,235,005.30

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Solution

The fourth proportional to 20,754,429.30, 31,047,663.15 and 18,235,005.30 is: 27,278,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754,429.30 : 31,047,663.15 = 18,235,005.30 : x
  2. Step 2: Convert to fraction form
    20,754,429.30/31,047,663.15 = 18,235,005.30/x
  3. Step 3: Cross multiply
    20,754,429.30x = 31,047,663.15 × 18,235,005.30
  4. Step 4: Simplify right side
    20,754,429.30x = 566,154,302,092,864.75
  5. Step 5: Solve for x
    x = 566,154,302,092,864.75/20,754,429.30
  6. Step 6: Final answer
    x = 27,278,721.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.